i cannot speak for others but i got very similar scores like yours.
and i passed PMP first time with 5 AT, 2 days after i finished all mockup tests.
I would definitely recommend you take PMP soon after you finish all mockup tests so your memories are fresh and you are used to sit there for 4 hours. If you waited too long to take the test, you might lose the momentum. Just my humble opinion.
Our rule of thumb is: If you consistently answer 70% of questions that you have never seen before correctly, you can consider yourself to be ready. This 70% rule is, of course, only a generalization. Everyone is different and there is no guarantee that a score of >70% will ensure that you pass the actual Project Management Professional (PMP)®
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®